Pump-operating mechanism.



T. J. JOHNSON.

PUMP OPERATING MEGHANISM.

APPLIOATION FILED 116.212) 1911.

Patented May 21, 1912.-

2 SHEETS-SHEET 1.

Patented May 21, 1912.

2 SHEETS-SHEET 2.

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UNITED STATES PATENT OFFICE.

THOMAS J'. JOHNSON, OF NORMAN, OKLAHOMA.

PUMP-OPERATING MECHANISM.

To all whom it may concern.

Be it known that I, THOMAS J. JOHNSON,

citizen of the United States, residing at Norman, in the county ofCleveland and State of Oklahoma, hove invented certain new and usefulImprovements in Pump-Operating Mechanism, of which the following is aspecification.

This invention has relation to pump op erating mechanisms, and has forits object to provide in combination with two pump cylinders mounted forreeiprocation with pistons mounted for reciprocation therein, mechanismfor simultaneously reciprocating the cylinders and the pistons, thepistons being arranged to move at a slower rate of speed than thecylinders which contain them. By such an arrangement two pump factorsare put approximately in counterbalance one with the other, whereby thedownward movement of one serves to assist the lifting of the other, andvice versa, thereby uniformly distributing the power throughout thecomplete stroke.

For a full understanding of the invention reference is to be had to thefollowing description and accompanying drawings in which:

Figure l is a side elevation of two pumps with the pumping mechanismapplied thereto; Fig. 2 is a side elevation of the same viewing thepumps at a right angle to the View shown in Fig. 1; Fig. 3 is ahorizontal sectional view of the same; Fig. 4 is a detail perspectiveview of the upper end portion of one of the pump cylinders; Fig. 5 is aside elevation of a modified form of the pumping mechanism; and Fig. 6is a side elevation of the same form of pumping mechanism illustrated inFigs. 1, 2 and 3 showing the same applied to another style of pump.

Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the accompanying drawingsby the same reference characters.

As illustrated in Figs. 1, 2, 3 and 4 of the drawings, the pumps consistof cylinders 1 which are provided at their upper ends with caps 2.Vertically disposed rods 3 are located at the opposite sides of thecylinder 1 and pass through the side portions of the caps 2, and serveas guides for the said caps and cylinders. Pistons 4 are arranged forreciprocatory movement in the lower por- Specification of LettersPatent.

Application filed August 22, 1911.

Patented May 21, 1912. Serial No. 645,358.

tions of the cylinders 1 and are attached to i the lower ends of pistonrods 5. These rods 5 are connected at their upper end portions with rackbars 6 which pass through the tops of the caps 2. A rack bar 7 isattached to the inner portion of each of the caps 2.

A bracket 8 is supported above the upper ends of the cylinder 1 andcarries a pulley 9. A cable 10 is trained over the pulley 9 and brackets11 are attached to its ends. Pulleys 12 are journaled in the brackets11. Cables 13 are attached at one end to the upper ends of the rack bars6 and are trained over the pulleys 12 and at their upper ends aresecured to the caps 2. A shaft 14 is carried by each of the caps 2 and ajournaled gear wheel 15 is mounted upon each shaft 14 and is connectedat its side with a gear wheel 16. The gear wheels 15 are of greaterdiameter than the gear wheels 16 and the gear wheel 15 carried by onecap 2mesheswitl1 the rack bar 7 carried by the other cap 2, and the gearwheel 16 carried by each cap 2 meshes with the rack bar 6 which isslidably mounted in the same cap. A roller 17 is journaled in each ofthe caps 2 and is located against the outer side of the rack bar 6 inthe same cap and serves as means to hold the teeth of the rack bar inengagement with the teeth of the gear wheel 16.

The parts are so arranged that when one of the cylinders 1 is inelevated position the other cylinder is in a lowered position, and viceversa. Also when each cylinder is in its lowermost position the piston 4located therein is at the lower end of its stroke in that cylinder, andwhen the cylinder is at its highest position the piston therein is atthe upper end of its stroke therein.

Any suitable means may be provided for reciprocating the cylinders andthe pistons. The means shown in Fig. 1 consists of a crank shaft 18which is journaled in a suitable support and which is provided with ahandle 19. A rod 20 connects the free end portion of the shaft 18 withone of the end portions of one of the cables 13. Therefore it will beseen that when the shaft 18 is rotated the cable 13 will be movedlongitudinally whereby the rack bar 6 is moved vertically along the sideof the gear wheel 16. This through the rod 5 moves the piston 4 withinthe cylinder 1. At the same time the wheel 15 rotates with the wheel 16,and

inasmuch as it meshes with the rack bar 7 carried by the other cap 2 thelast mentioned -rack bar and its cap are moved which moves the cable 10around-the pulleys 9 and the first mentioned cylinder is lifted andlowered, depending upon the direction of rotation of shaft 18. The saidcylinder moves faster than the piston 4 contained therein, andconsequently a column of water in the cylinder is lifted within thesame. Therefore as the cylinder 1 shown at the right hand portion ofFig. 1 is elevated the cylinder 1 at the left hand portion of the saidfigure is lowered, and during its downward movement the gear wheel 15attached to the cylinder at the left is rotated by being in contact withthe rack bar 7 carried upon the cap of the cylinder at the right. Thislast mentioned gear wheel 15 rotates the gear wheel 16 attached theretowhich in turn moves the rack bar 6 with which it is meshing in adownward direction at a slower rate of speed than that at which thecylinder at the left is descending, and consequently the piston in thecylinder at the leftpasses under the column of water which is trapped inthe lower portion of the said cylinder above the valve 21 with whicheach cylinder is provided. Therefore itwill be seen that the pumpfactors and the operating parts are so assembled that the power tooperate the factors is uniformly distributed throughout the completepumping stroke. It is to be understood that these pumps are the samesize and weight so that when the two are reciprocated the water in thedown moving pump cylinder serves as power to help lift the water in theup moving pump cylinder, and to this extent it lessens the powernecessarily required to lift the water under other conditions.

Inthe form of pump as shown in Fig. 6 the same form of mechanism foroperating the cylinders and pistons as that just described is employed,but in this form of pump the cylinders 1 communicate at their upper endswith a reservoir 22 which is provided with a discharge outlet 23. Thewater passes from the cylindersV 1 into the reservoir 22, from whence itpasses through the outlet 23 in a steady stream.

In the form of operating mechanism as shown in Fig. 5 the racks 7 arenot attached to the caps 2, but are mounted upon fixed supports 24:.Otherwise the mechanism in this form of the invention is the Y same asthat shown in Figs. 1 to 3, inclusive,

and the operation of the pump cylinders and pistons yis the same.

This pump together with its operating mechanism may be used to advantagefor farm purposes, water works, railroads, for draining overiowed lands,irrigation etc.

Having thus described the invention what is claimed asnew is:

1. A pump comprising two cylinders mounted for reciprocation and havingpistons slidably mounted therein, caps mounted upon the upper ends ofthe cylinders, wheels connected in pairs and journaled in the caps, onemember of each pair being operatively connected with the piston in thesame cylinder upon which the pairof wheels is supported, and means forrotating the other wheels of the pairs as the cylinders reciprocate.

2. In combination with two cylinders mounted for reciprocation withpistons slidably mounted therein, and an operating means located at theupper end of each cylinder and consisting of gear wheels of difauldiameter being operatively engaged with t-he y piston rod and the gearwheel of larger diameter being operatively connected with the othercylinder.

3. In combination with cylinders mounted for reciprocation and pistonsslidably mounted therein, an operating means located at the upper end ofeach cylinder and consisting of gear wheels of different diameters, oneof which is operatively engaged with the piston rod and the other ofwhich is operatively connected with the other cylinder, a cableconnected at one end with the upper end of each piston rod and at itsother end with the cylinder in which the said rod is located, and acable mounted for movement over a pulley located above bothV cylindersand carrying at its ends pulleys over which the first mentioned cablesare trained.

t. In combination with cylinders mounted for reciprocation and pistonsslidabljyT mounted therein, an operating mechanism located at the upperend of each cylinder diameters, one of which operatively engages thepiston rod and the other operatively engages the other cylinder, apulley j ournaled above the cylinders, a cable trained over said pulley,pulleys carried at the ends of said cable, cables attached at one end tothe upper ends of the piston rods and trained over the last mentionedpulleys and connected at their other ends with the upper portions of thecylinders in which the said piston rods are located, and means connectedwith one of the last mentioned cables to move the same longitudinally.

In testimony whereof, I affix my signature in presence of two witnesses.

Witnesses:

A. R. CLEMENT, QI. F. BENKE.

Copies of this patient may-be obtained for ve cents each, by addressingthe Commissionercf Patents, Washington, D. C.

